Kolev, Boyan and Chountas, Panagiotis and Rogova, Ermir and Atanassov, Krassimir T. (2008) Representation of value imperfection with the aid of background knowledge: H-IFS. In: Intelligent techniques and tools for novel system architectures. Studies in Computational Intelligence (109). Springer-Verlag, pp. 473-492. ISBN 9783540776215Full text not available from this repository.
An Integrated Data Management System is required for representing and managing indicative information from multiple sources describing the state of an enterprise. In such environments, information may be partially known because the related information from the real world corresponds to a set of possible values including the unknown. Here, we present a way to replace unknown values using background knowledge of data that is often available arising from a concept hierarchy, as integrity constraints, from database integration, or from knowledge possessed by domain experts. We present and examine the case of H-IFS to represent support contained in subsets of the domain as a candidate for replacing unknown values mostly referred in the literature as NULL values.
|Item Type:||Book Section|
|Subjects:||University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)|
|Depositing User:||Rachel Wheelhouse|
|Date Deposited:||23 Jul 2012 10:57|
|Last Modified:||23 Jul 2012 10:57|
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